Stop-lever contact device.



W. KAISLING.

STOP LEVER CONTACT DEVICE. APPLICATIONFILED' NOV. 16, 1914.

847. v Patented Oct. 10,1916.

29 {his L 19 WILLIAM KAISLING, OF CHICAGO, ILLINOIS, ASSIGNOR TO KELLOGGSWITCHBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OFILLINOIS.

STOP-LEVER CONTACT DEVICE.

Specification of Letters Patent.

Patented Oct. 10, 1916.

To all whom it may concern:

Be it knownthat I, WILLIA'M KA1sLING,a citizen of the United States ofAmerica, resident of Chicago, county of Cook, and State of Illinois,have invented certain new and useful Improvements in Stop-Lever ContactDevices, of which the following is a specification.

My invention relates to stop lever contact devices for use onelectrically controlled organs, one of the principal objects of my invention being to provide a simple and cheap lever actuated contactdevice which is pos1- tive in its operation. To this end I provide adevice having resilient or yielding contact members adapted to beengaged by the stop lever when advancing so that its continued movementcauses a rubbing engagement between the movable and stationary contacts.In this way the contacting surfaces are always kept clean and free ofdust.

For a betterunderstanding of my invention, reference will be had to theaccompanying drawing in which- Figure 1 is a side view of an organ stoplever and the contact elements in their normal position; Fig. 2illustrates the contact device and lever in a partially actuatedposition; Fig. 3 illustrates the contact device and lever in a fullyoperated position; Fig. 4 is a face "iew of the contact device; Fig.

5 is asection on the line 5, 5 of Fig. 4 look-- ing in the direction of'the arrows indicated thereon: and Fig. 6 is a perspective view of theinsulating contact block.

Referring now more in detail to my invention as illustrated, I provide aspring mounting support 1 on which the individual contacts 2 and 3 andcommon resilient con-'- tact member 4 are mounted, a strip of suitableinsulation 5 being placed between the contacts 2, 3, thecommon resilientcontact 4 and the mounting 1. The contacts 2 and 3 are suitably clampedupon the insulation strip 5 by the tongues 6 and 7 which are integralwith the same. The tongue 6 is inserted through an opening 25 in theinsulation strip 5 and its inserted end is bent up to engage the face ofa groove 5 cut in the bottom of the insulation strip 5. The tongue 7 isbent over the lower edge of the strip 5 and its end is also bent up toengage the face of the groove 5 thus securely holding the contact inplace upon the strip 5. Y The individual contacts 2 and 3 also havesuitable terminals 2 and 3 to which connections may be attached; Theresilient common contact 4: is held in place by means of the screws 8and nuts 9 and a terminal 10 is inserted between the strip 5 and thecontact member 4 this serving as a terminal for the contact 4. Thecontact member 4 is provided with resilient contact extensions .4

and 4 which are adapted to engage the stationary contacts 2 and 3 whenthe said members 4 and 4 are actuated.

The bracket 1 is fastened to the base -11 of a frame A by means ofscrews 12, elongated slots 13 (Fig. 1) being provided in the baseportion 1 so that the spring support may be adjusted relative to thestop lever 14 which is pivotally supported in a block 15 by means of thepivot pin 16 which rests in slots 15 cut in the support 15, the supportbeing fastened to rail1l by means of the screw 17 A slot 18 (shown indotted lines) running the width of the rearwardly extending enlargedportion of the lever, receives the pin 15 thereby forming a hearingabout which the lever rocks.

holding spring 19 is provided which holds the lever in either its normalor actuated position, one end of the spring resting in a groove 26 inthe rear portion of the lever while the other end has, a notch cut in itto engage a stud 20 which is fastened to the face board 21 of frame A.The stop lever 14 extends through a suitable opening in the face-board21, its end 14 extending out beyond the frame so as to be easily engagedby the fingers of the operator.

To actuate the contact device, the operator raises the lever upward. Asthe lever is advanced, the rounded edge 14 of the lever engages theextensions 4 4 as shown in Fig. 2 and a continued movement of the leverto its fully actuated position as shown in Fig. 3 causes the resilientextensions 4 and 4: to give slightly and as the contacting ends of theextensions 4 and 4: had engaged the contacts 2 and 3 before the leverwas fully actuated, this slight bending of the extensions caused arubbing, engagement to be efiected between the contacting ends and thestationary contacts 2, 3, producing a more positive electricalengagement. As the lever is advanced to a point where its groove thelever with a snap like movement and then holds the leveruntil restoredby. the operator. In restoring the lever, spring 19 acts to continue itsrestoration after it has returned part way as will be understood fromthe previous description.

Havi11g.described my invention, What I claim as new and desire to secureby United States Letters Patent, is:

a 1. A device of the character described comprising a stop lever havingnormal and operated positions, spring means for snapping said lever fromone of its positions to another when said lever is manually operated,relative stationary and yielding contact elements, means whereby whensaid lever is advanced said contacts are closed and whereby a furtheradvance of the lever effects a continued relative movement of thecontacts so as to produce a rubbing engagement between said contacts:

2. A device of the character described comprising a stop lever having anormal and an operated position, a spring member for snapping said leverfrom one of its positions to the other and for yieldingly holding saidlever in either of its positions, stationary contact devices, andyielding contact elements engaged by said lever when advanced to closethe yielding and stationary contacts whereby a continued advance of thelever causes a continued movement of the yielding contacts toeffect arubbing engagement with the stationary contacts.

3. A device of the character described comprising a tKvo positionstop-lever, means for pivotally supporting said leverat an intermediatepoint, a contact bracket supported to the rear of said lever, stationaryand relatively movable contacts supported by said bracket in operativerelation to said lever, said movable contacts being of resilientmaterial and adapted to engage the stationary contacts when said leveris partly advanced so that a continued advance of said lever will effecta further movement of the resilient contacts so as to produce a rubbingengagement between the movable and stationary contacts, and a springmember for moving said lever from one of its positions to another whensaid lever is manually operated.

4. A device of the character described comprising an elongated twoposition stop lever, means for pivotally supporting said lever at anintermediate point, a spring member for yieldingly holding said lever ineither of its positions, a contact bracket supported to the rear of saidlever, stationary and relatively movable contacts supported by saidbracket in operative relation to said lever, manual means for movingsaid lever into engagement with said movable contact at which time saidspring member causes a continued advance of said lever to effect afurther movement of said resilient contact so as to produce a rubbingengagement between the said movable and stationary contacts.

5. A device of the character described comprising a two position stoplever, a spring member for yieldingly holding the said lever in eitherof its positions when moved thereto, stationary and relatively movablecontacts supported in operative relation to said lever, and means formoving said lever to a point where said spring member will cause acontinued advance of said lever, said movable contact being of resilientmaterial so that when it is operated by said stop lever it produces arubbing engagement with said stationary contact.

Signed by me at Chicago, county of Cook and State of Illinois, in thepresence of two Witnesses.

WILLIAM KAISLING.

Witnesses:

GEORGE E. MUELLER, M. R. Roonrom).

